Should the hamburger menu close only on icon click or on click outside as well?

1. How does a hamburger menu work?
2. What does the hamburger icon do?
3. Should you use hamburger menu on desktop?
4. What does this button even do hamburger?

How does a hamburger menu work?

A hamburger menu is an icon used on a website and in apps that, when clicked or tapped, opens a side menu or navigation drawer. It's called a “hamburger menu” because it takes the form of the famous sandwich.

What does the hamburger icon do?

The hamburger menu, or the hamburger icon, is the button in websites and apps that typically opens up into a side menu or navigation drawer. It was created by interaction designer Norm Cox for the Xerox Star personal workstation in 1981 as an easy way to communicate to users that the button contained a list of items.

Should you use hamburger menu on desktop?

Even if mobile design prefers using a hamburger menu, they are not so popular on the desktop, and it is not a common pattern for users. We recommend displaying a top-level navigation option or a combination navigation option for the desktop version, where there is plenty of screen real estate.

What does this button even do hamburger?

Its function is to toggle a menu (sometimes referred to as a hamburger menu) or navigation bar between being collapsed behind the button or displayed on the screen.